MEXICO CITY/SAN FRANCISCO (Reuters) - Working quietly from a shared office space in one of Mexico City's trendiest neighborhoods, China's ride-hailing giant Didi Chuxing is planning to hit its archrival Uber where it hurts.

BEIJING (Reuters) - Alibaba Group Holding Ltd said it will invest an additional $2 billion in Southeast Asian e-commerce firm Lazada Group and replace its chief executive, consolidating its control over the firm as it targets an aggressive expansion in the region.